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Amelanchier Observations
(saskatoon)
Submit Data Observations
Introduction to the NPN Native Species Observation Program
Saskatoon (also known as serviceberry or june-berry) vary from shrub to small tree size, and are especially common in western regions, where the plants prefer well-drained, coarse-textured soils. In eastern regions, these shrubs often are found in wetter soils. A single stem may be less than 30 cm high, whereas a clump of small trees may be over 6 meters tall. Leaves are oval-shaped, and slightly longer (about 2-6 cm) than they are wide. In western regions, leaves are usually rounded at the tip and straight across at the base, with coarse "teeth" on the upper half. In eastern regions, leaves are pointed with teeth all around the edges. The flowers appear in clusters of five to 11 white flowers, often before the leaves are fully opened. Small clusters of reddish-purple to black berries develop in early summer.
Source: Plantwatch Canada
You should record when five well-defined phenological events occur for saskatoon:
- Beginning of flowering, first flowers open (BF) is the date when in at least three places on the plant the first flowers have opened completely.
- Sprouting of leaves (SL) is the date when the buds begin to burst open in at least three places on the plant under observation. The first green is visible on the young spring shoots and the first scales may fall off the buds.
- Beginning of the unfolding of leaves, first leaf surfaces visible (UL) is the date when in at least three places on the plant under observation first leaves have pushed themselves completely out of the bud or leaf sheath. The leaves have unfolded completely, so that the leaf stalk or leaf base is visible (sometimes only recognizable by bending back the young leaf). At this point, the individual leaf has taken its ultimate form, but has not yet reached its final size.
- Fruit ripe (FR) is the date when in at least three places on the plant under observation, the fruit shows the coloring characteristics of the plant variety (i.e., is ripe), and can be easily removed (i.e., is ready to fall from the plant).
- Coloring of leaves (CL) is the date when approximately 50% of the leaves (including those that have fallen to the ground) have taken on the colors of autumn.
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Please record average dates for each event among multiple plants of the same species. Report by email if any plant appears in poor health or event dates for same-species plants vary by more than a few days.
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